Framework agreement for maintenance and renovation of IBA systems

Summary

The tender concerns a framework agreement for maintenance and renovation of IBA systems in the Waterschap Scheldestromen area in Zeeland province, Netherlands. The contract covers 177 IBA systems, including tanks and helophyte-filter systems, across the municipalities of Goes, Hulst, Middelburg, Reimerswaal, Sluis, Terneuzen and Tholen. The assignment includes preventive and corrective maintenance, fault detection and resolution, a 24-hour fault service, sludge removal and disposal, measurements and checks, recording and reporting of maintenance data, and renovation work. Full replacement of IBA systems is outside the scope of the contract. The framework has an initial term of two years and can be extended twice by one year each. The estimated total contract value is EUR 1,420,000. Awarding will be based on best price-quality ratio. The procurement is open; bid submission deadline is 9 November 2026 at 11:00 CET. The project area includes the municipalities of Goes, Hulst, Middelburg, Reimerswaal, Sluis, Terneuzen and Tholen.